Answer:
Calcium
Protein
Ruby can make sure he gets these nutrients by having him eat meat, beans, peanuts, cheese, yogurt, and soy/almond milk.
Explanation:
I think B not sure though................ Good luck,Hope it helps:)
A person might be able to recognize if something is wrong with their body that they can prevent by seeing the correct personell, or more actively, for example, if one knows CPR and is able to save a choking person.
It's not but will most likely lead to cramps and dehydration
